pub.client.ftp:sessioninfo

sessioninfo	Document List Information about the current FTP sessions. Each document in sessioninfo represents a single session and contains the following information:
	Key	Description
	serverhost	String Name or IP address of the FTP server.
	serverport	String Port number on which the FTP server listens for requests.
	dataport	String Listener port of the data transfer channel used by this session.
	username	String User logged on to FTP server.
	password	String Password for the FTP user specified in username.
	account	String Conditional. The user name for an account on the FTP server. The account is defined in the FTP protocol to further identify the user that is identified by the username and password input variables.
	transfertype	String Data transfer mode (passive or active) used by this session.
	encoding	String Conditional. IANA character set used by this session. If encoding is not returned, the encoding was not explicitly set and the default JVM encoding is in effect.

When you start an FTP session with pub.client.ftp:login, you can set the optional dataport parameter to specify the port number for data transfers. During the FTP session, pub.client.ftp:sessionInfo returns the dataport parameter with the port number used for data transfers.

If you do not set the dataport parameter in pub.client.ftp:login, the server uses a random port number. During the FTP session, pub.client.ftp:sessionInfo will return a 0 for the dataport parameter to indicate that the port number used for data transfers is random.